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On your device. In your control.
a tool by nitores

Your files.
A fresh format.

Convert image formats, JSON, CSV and subtitle files on your device. Preview settings and review format limitations before downloading.

Preview firstYour settingsNo file uploads
Compress images

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Image compressorJPG, PNG & WebP · compare before and after HEIC to JPGOpen conversion tool WebP to PNGOpen conversion tool WebP to JPGOpen conversion tool AVIF to PNGOpen conversion tool AVIF to JPGOpen conversion tool JSON to CSVOpen conversion tool JSONL to CSVOpen conversion tool CSV to JSONOpen conversion tool SRT to VTTOpen conversion tool VTT to SRTOpen conversion tool ASS to SRTOpen conversion tool

File conversion without uploads

Converter turns images, data files and subtitles into the format you need, directly in your browser. Your files are processed on your device and are not uploaded to our servers, which suits private photos, customer exports and unreleased video captions. Every tool shows a preview or clear settings before you download, and it is free to use with no account. Start with HEIC to JPG for iPhone photos, JSON to CSV for spreadsheets, or SRT to VTT for web video.